Diwali decorations made by hand carry a warmth that no store-bought item can match. A resin diya holder that glows amber through embedded marigold petals and shimmers with gold mica is the kind of piece people notice on the mantelpiece and immediately ask about. The good news is that it is completely achievable at home, even if you have only made one or two resin projects before.
The trickiest part is not the embedding or the colouring — it is getting the tea light well right and preventing the thick base from cracking during cure. This guide walks you through every step in plain language: mixing ratios, petal prep, mould technique, and the exact pouring sequence that keeps the base crack-free. By the end you will have a finished resin diya for Diwali that looks like it came from a boutique craft studio.
Shrebhavi stocks everything you need for this project, from casting resin to pressed botanicals, so you can order once and get started without hunting across multiple suppliers.
Quick Answer
If you are short on time, here is the core process at a glance:
- Use a 2:1 epoxy resin (2 parts resin to 1 part hardener by volume)
- Pour in three thin layers, not one thick pour, to avoid heat buildup and cracking
- Add gold mica powder to the base layer (roughly 1–2% by weight of mixed resin)
- Place fully dried marigold petals in the second layer only — never fresh petals
- Create the tea light well using a silicone tea light cup pressed into the partially cured second layer, then removed before final cure
- Allow full 48-hour cure before demoulding
Materials You Need
Getting your materials ready before you mix anything saves a lot of stress. Here is the full list for one resin diya holder mould (4 inch round):
- Epoxy resin 2:1 — approximately 100–120 ml of mixed resin total. The Resin 2:1 (150gm) pack is just right for a single piece, or grab the Resin 2:1 (300gm) if you plan to make two or three diyas in a batch.
- 4 inch round silicone mould — flat-base style with at least 1.5 cm depth
- Gold mica powder — cosmetic or resin-grade, 2–3 grams
- Dried marigold petals — or use a pressed flower set for variety
- Silicone tea light cup — a standard 38 mm diameter one works perfectly
- Mixing cups and stir sticks
- Nitrile gloves and safety glasses
- Heat gun or lighter (for popping surface bubbles)
- Isopropyl alcohol (for cleaning spills and wiping the mould)
For the botanical elements, Shrebhavi's 12 in 1 Pressed Flower set gives you a beautiful variety of pre-pressed flowers that are already dry and flat — ideal for embedding without moisture issues. If you prefer a smaller set, the 10 in 1 Pressed Flower - D1 works just as well for a diya-sized project.
Preparing Marigold Petals for Embedding
This step is where most beginners go wrong. Fresh or even slightly damp petals will release moisture into the resin, causing cloudiness, bubbles, and sometimes mould growth inside the finished piece.
Drying Fresh Marigold Petals at Home
If you are using fresh marigold petals from a garland or pooja thali, spread them in a single layer on a paper towel and leave them in a warm, dry spot — near a window or on top of a refrigerator — for 5 to 7 days. Do not use a microwave; it scorches the petals and kills the colour.
Alternatively, press them between two sheets of absorbent paper inside a heavy book for the same duration. The petals should feel papery and completely stiff before you use them.
Using Pre-Pressed Flowers
Pre-pressed botanicals from Shrebhavi are already dried and pressed flat, which makes embedding in resin much more predictable. The 10 in 1 Pressed Flower - D3 includes petals and small florals that sit beautifully in a 4 inch round mould without overlapping awkwardly.
Setting Up the 4 Inch Round Resin Mould
A clean, level mould is essential. Any tilt will cause your layers to cure unevenly, which affects how the tea light well sits.
- Wipe the inside of the silicone mould with a lint-free cloth and a small amount of isopropyl alcohol. Let it dry fully.
- Place the mould on a flat, level surface — check with a spirit level if you have one.
- If your mould is very flexible, set it inside a slightly larger rigid container so it holds its shape during pouring.
- Do not apply mould release to silicone — resin releases from silicone naturally, and release spray can cloud the surface of your piece.
Mixing the Resin — Ratios and Tips
For a resin diya holder mould project like this, a 2:1 epoxy resin is the right choice. It has a longer working time than 1:1 resins — usually 30 to 40 minutes — which gives you space to embed petals without rushing.
If you are new to mixing ratios, How to Choose the Right Resin Ratio for Your First Project: 1:1 vs 2:1 Explained for Indian Beginners covers the difference clearly and helps you pick the right product for different project types.
Mixing Steps
- Measure resin and hardener by volume in a 2:1 ratio — for example, 60 ml resin to 30 ml hardener for the first pour.
- Pour both into a clean mixing cup and stir slowly for 3 to 4 minutes, scraping the sides and bottom of the cup.
- Transfer to a second clean cup and stir for another 1 to 2 minutes. This double-cup method ensures thorough mixing and reduces sticky spots.
- Do not whip or beat the resin — gentle stirring keeps bubbles to a minimum.
Safety note: Always wear nitrile gloves and work in a ventilated room. Epoxy hardener fumes are irritating to the eyes and respiratory system. Safety glasses are not optional — a splash in the eye is a medical emergency.
Layer One: The Base Pour with Gold Mica
The base layer is what people see when the diya is lit from below. This is where the gold mica powder does its best work.
Adding Gold Mica
Mix your gold mica powder into the freshly stirred resin before pouring. Use roughly 1 to 2 grams of mica per 100 ml of mixed resin — about half a teaspoon. Too much mica makes the resin opaque and blocks the glow from the tea light. Too little and the shimmer barely shows.
Stir the mica in thoroughly. It should look like liquid gold, not patchy.
First Pour
Pour about 30–35 ml of the mica-tinted resin into the mould. This creates a layer roughly 5–6 mm deep. Use a heat gun or lighter held 10–15 cm above the surface for 2–3 seconds to pop any bubbles. Do not hold the heat too close or too long — you risk yellowing the resin or creating new bubbles.
Allow this layer to cure until it reaches a gel stage — firm to the touch but not fully hard. At room temperature (around 25–30°C in most Indian homes), this takes approximately 4 to 6 hours.
Embedding Marigold Petals in the Middle Layer
This is the most satisfying part of making a resin diya for Diwali. Embedding botanical resin technique is all about placement and patience.
Arranging the Petals
Once the base layer is at gel stage, arrange your dried marigold petals on top. Work from the outside edge inward. Marigold petals are naturally curved, so press them gently flat with a toothpick. You can mix in a few smaller pressed flowers from your set for visual interest.
Leave a clear circle in the centre — approximately 40 mm in diameter — where the tea light well will go. Do not place petals in this zone.
Second Pour
Mix a fresh batch of resin — this time without mica, or with just a tiny pinch if you want a warm amber tint. Pour it slowly over the petals, just enough to cover them. About 25–30 ml is usually sufficient.
Use a toothpick to gently reposition any petals that float or shift. Pop bubbles with the heat gun. Let this layer cure to gel stage again — another 4 to 6 hours.
Creating the Tea Light Well Without Cracking
This is the step that makes a resin tea light holder mould project genuinely functional. The well needs to be deep enough to hold a standard tea light (typically 15–17 mm tall) and centred in the piece.
The Insert Method
When the second layer has reached gel stage — firm but still slightly tacky — press a silicone tea light cup gently into the centre of the mould. Push it down until its rim is level with the top of your current resin surface. The silicone cup acts as a placeholder for the well.
Now mix your third and final batch of resin. Pour it around the tea light cup, filling the remaining space in the mould. Do not pour resin into the cup itself. Pop bubbles and leave to cure.
Removing the Cup
After the resin has cured for a full 24 hours (still in the mould), gently twist and pull the silicone tea light cup out. Because silicone does not bond to epoxy, it should release cleanly, leaving a perfect circular well in the centre of your resin diya holder.
Why This Prevents Cracking
The main reason resin diya holders crack is heat. A single thick pour of 100+ ml generates a significant exothermic reaction — the resin heats itself as it cures. In a confined mould, that heat has nowhere to go and the base cracks from the inside out.
By pouring in three thin layers and allowing each to gel before the next, you spread the exothermic heat over time. The total heat generated is the same, but the peak temperature is much lower. This is especially important in Indian summers — if you want to understand why thick pours go wrong in warm weather, Deep Pour vs Thin Pour Epoxy in Indian Summers: Why Your Resin Overheats in May and What to Do About It explains the physics in simple terms.
Demoulding and Finishing
After a full 48-hour cure from the final pour, your resin diya holder is ready to come out of the mould.
- Gently flex the silicone mould from the edges inward. The piece should release easily.
- If there are any sharp edges or small drips on the base, sand them lightly with 400-grit wet-dry sandpaper, then 800-grit for a smooth finish.
- Wipe the piece clean with a damp cloth.
- Optional: apply a thin coat of clear resin or resin polish to the top surface for extra gloss.
Place a standard tea light candle in the well. When lit, the flame will glow through the translucent resin, illuminating the marigold petals and making the gold mica shimmer. The effect at night is genuinely beautiful.
Why Resin Diya Holders Crack — and How to Prevent It
Cracking is the most common problem people report with epoxy resin Diwali craft projects that involve thick moulds. Here are the main causes and fixes:
- Single thick pour: Never pour more than 6–8 mm of 2:1 epoxy in one go in a small mould. Split into layers.
- Warm room temperature: Resin cures faster and hotter above 30°C. Work in the coolest part of the day — early morning is ideal in October/November.
- Wrong ratio: Too much hardener accelerates the exothermic reaction dramatically. Measure carefully. Read How to Choose the Right Resin Ratio for Your First Project: 1:1 vs 2:1 Explained for Indian Beginners if you are unsure.
- Sticky layers: If your previous layer is still sticky when you pour the next one, you may have a ratio error. A sticky cure is a separate problem — Why Your Resin Is Still Sticky After 24 Hours — and How to Fix It Before You Ruin the Piece covers the fixes.
- Moisture in petals: Wet botanicals release steam during cure, creating internal pressure. Always use fully dried petals.
Resin Type Comparison for This Project
Not sure whether to use UV resin or epoxy for your resin diya holder mould? Here is a quick comparison:
| Feature | 2:1 Epoxy Resin | UV Resin |
|---|---|---|
| Working time | 30–40 minutes | 2–5 minutes (must work fast) |
| Cure method | Chemical reaction, 24–48 hrs | UV lamp, 2–5 minutes per layer |
| Max pour depth per layer | 6–8 mm safely | 1–2 mm (UV doesn't penetrate deep) |
| Suitable for 4 inch round mould | Yes — ideal | No — too thick for UV to cure through |
| Cost for this project | ₹150–₹300 for resin | Higher per ml, not practical here |
| Botanical embedding | Excellent — plenty of time to place | Difficult — resin starts curing immediately |
| Indian humidity tolerance | Good with proper mixing | Can yellow faster in high humidity |
For a deeper look at this comparison, especially for smaller craft projects, see UV Resin vs Epoxy Resin for Small Moulds: Which One Actually Works Better for Keychains, Pendants, and Jewelry in Indian Humidity?
The verdict for a resin tea light holder mould project: 2:1 epoxy resin every time. The depth, the working time, and the cost all make it the right call.
Frequently Asked Questions
Can I use a real diya (clay lamp) shape mould instead of a flat round mould?
Yes, but the technique changes slightly. A diya-shaped mould has a natural depression that can serve as the tea light well, so you may not need the silicone cup insert method. However, the walls of a diya mould are thinner and more prone to cracking if you pour too much resin at once. Stick to thin layers regardless of mould shape.
How much resin do I need for one 4 inch round resin diya holder mould?
A 4 inch (approximately 10 cm) round mould with 1.5 cm depth holds roughly 100–120 ml of mixed resin across all three layers. The Resin 2:1 (150gm) pack gives you exactly enough for one piece with a little leftover for corrections. If you are making two or three diyas, go for the Resin 2:1 (300gm) pack.
My marigold petals turned brown inside the resin. What went wrong?
This almost always means the petals had residual moisture when you embedded them. As the resin cures and generates heat, that moisture oxidises the petals. It can also happen if you use the heat gun too aggressively near fresh petals. The fix is simple: dry your petals more thoroughly next time, or use pre-pressed botanicals from a reliable source. The colour change is permanent — there is no way to reverse it once cured.
Can I add fragrance or essential oil to the resin to make it smell like marigold?
You can add a small amount — no more than 1–2% of the total resin volume — of fragrance oil that is specifically formulated for resin. Do not use water-based essential oils or regular perfume; water in the mix causes cloudiness and can prevent proper curing. Resin-compatible fragrance oils are available from craft suppliers. The scent will be very mild once cured, so do not expect a strong fragrance.
How do I make the resin diya holder safe to use with a real flame tea light?
Cured epoxy resin is not flammable at normal candle temperatures, but it can soften if exposed to prolonged direct heat. Use only standard wax or soy tea lights in aluminium cups — these burn at a low temperature and the aluminium cup contains the heat. Never use a naked flame directly in the resin well without a tea light cup. The well should be at least 15 mm deep so the flame sits below the rim of the resin.
Can I make multiple diyas as Diwali gifts and sell them?
Absolutely — resin diya holders with embedded marigold petals and gold mica are popular Diwali handmade gifts and sell well at craft fairs and online. For batch production, work in sets of three or four at a time. Batch your pours so all moulds go through each layer stage together, which saves time and resin. Label your pieces as handmade resin art and note that they are decorative items intended for use with standard tea light candles in aluminium cups only.
Wrapping Up
Making a resin diya holder mould project for Diwali is one of those crafts that looks impressive but is genuinely manageable once you understand the layering logic. The three-layer approach — gold mica base, botanical middle, and a clean top with a tea light well — gives you a piece that is both beautiful and structurally sound.
The keys to success are dry petals, patient thin pours, and accurate mixing ratios. Skip any one of those and you will likely end up with cracks, cloudiness, or a sticky surface. Follow them and you get a glowing, professional-looking piece that celebrates Diwali in a genuinely handmade way.
Shrebhavi has the casting resin, pressed botanicals, and everything else you need to get started. If you are planning a Diwali craft session with friends or family, the Resin 2:1 (300gm) pack paired with a pressed flower set makes for a complete, ready-to-go kit. Happy crafting, and Happy Diwali!